function [volume price]=prepareData(retvet,firstprice);
price=[];
volume=CalPrice(firstprice(1),retvet(:,1));
price(:,3)=CalPrice(firstprice(4),retvet(:,4));
price(:,1)=CalPrice(firstprice(2),retvet(:,2));
price(:,2)=CalPrice(firstprice(3),retvet(:,3));
price = adjPrice(price);